@r: 100rem;
* {
  margin: 0;
  padding: 0;
  list-style: none;
  text-decoration: none;
}
.main {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  .cover {
      width: 100%;
      height: 100%;
    position: absolute;
    z-index: 998;
    background-color: #000;
    opacity: 0.5;
  }
  .pop {
    width: 70%;
    max-width: 400px;
    background: #ffffff;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 10px;
    z-index: 999;
    .title {
      text-align: center;
      font-size: 100 / @r;
      padding-bottom: 10px;
      border-bottom: 1px solid #cccccc;
    }
    .txt {
      text-align: center;
      font-size: 100 / @r;
      padding: 10px 0 15px 0;
    }
    .btn {
      width: 80%;
      margin: 0 auto;
      display: flex;
      div {
        width: 50%;
        text-align: center;
        border: 1px solid #ccc;
        cursor: pointer;
      }
    }
  }
}
